US11371493B2 - Device for dispensing a substance comprising a chamber defining a substance inlet, a substance outlet, an air inlet, and an air outlet, a piston located inside the chamber and whose movement causes the exit of both the substance and air to outside of the device - Google Patents

Device for dispensing a substance comprising a chamber defining a substance inlet, a substance outlet, an air inlet, and an air outlet, a piston located inside the chamber and whose movement causes the exit of both the substance and air to outside of the device Download PDF

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US11371493B2
US11371493B2 US15/026,940 US201315026940A US11371493B2 US 11371493 B2 US11371493 B2 US 11371493B2 US 201315026940 A US201315026940 A US 201315026940A US 11371493 B2 US11371493 B2 US 11371493B2
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Prior art keywords
transmission element
substance
toothed wheel
piston
air
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US20160298613A1 (en
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Julio Cesar Ruiz Ballesteros
Edoardo Bertassi
Stefano Baldessari
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Zobele Holding SpA
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Zobele Holding SpA
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Assigned to ZOBELE HOLDING SPA reassignment ZOBELE HOLDING SPA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RUIZ BALLESTEROS, JULIO CESAR, BALDESSARI, STEFANO, BERTASSI, EDOARDO
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/047—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being pin-and-slot mechanisms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
    • A47K5/1204—Dispensers for soap for liquid or pasty soap dispensing dosed volume by means of a rigid dispensing chamber and pistons
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1217—Electrical control means for the dispensing mechanism
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/3001—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/04—Pumps for special use
    • F04B19/06—Pumps for delivery of both liquid and elastic fluids at the same time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/13—Dispensing or storing means for active compounds
    • A61L2209/134—Distributing means, e.g. baffles, valves, manifolds, nozzles

Definitions

  • the present invention relates to a device for dispensing substances, such as soap or air freshener, that dispenses a specific amount of said substance when a detector is activated, such as when a hand is placed near said dispensing device or when the presence of a person is detected.
  • substances such as soap or air freshener
  • Devices are currently commonly used for dispensing substances, such as soap, that dispense a predetermined amount of substance using presence detectors, such as when a hand is detected near the device.
  • These dispensing devices comprise a motor actuated by a sensor that detects said presence, releasing the substance from the device by means of a transmission mechanism.
  • the dispensing devices of this type currently known are bulky, as said transmission means generally comprise a plurality of gears that occupy a great volume.
  • the volume occupied by these devices is a drawback when installing the devices, for example, in a bathroom, as the available space is limited.
  • the dispensing device of the invention manages to solve the aforementioned drawbacks, and provides additional advantages as described below.
  • the device for dispensing substances of the present invention comprises:
  • said first transmission element is connected to said piston by a pin of the first transmission element which is housed inside a groove of said piston, the rotation of said first transmission element resulting in the displacement of said pin inside the groove and the alternating linear motion of said piston.
  • said piston comprises a cylinder in which the substances to be dispensed from the chamber are placed.
  • said chamber also comprises an outside air inlet and an air outlet.
  • said first transmission element is a disc comprising a toothed wheel with its teeth located on the perimeter of one of the disc faces
  • said second transmission element comprises a first toothed wheel that engages the aforementioned wormed gear and a second toothed wheel that engages the first transmission element
  • the diameter of said first toothed wheel of the second transmission element is smaller than the diameter of said second toothed wheel of the second transmission element, and the toothed wheel of the first transmission element and the second toothed wheel of the second transmission element are perpendicular to each other.
  • the dispensing device of the present invention has the advantage of having small dimensions compared to conventional dispensing devices of this type, which makes it suitable for use in any location, such as above a sink. In addition, its cost is appropriate for the users' needs.
  • FIG. 1 is a perspective exploded view of the dispensing device of the present invention.
  • FIG. 2 is a cross-sectional view of the dispensing device of the present invention.
  • the dispensing device of the present invention is preferably used to dispense soap automatically when detecting the presence of a hand, although it is obvious that such a dispensing device could also be used to dispense other substances, such as air freshener when detecting the presence of a person.
  • the dispensing device of the present invention comprises a chamber 1 that contains the substance to dispense and air; inside this chamber 1 , a piston 4 moves in an alternating motion to dispense said substance and/or air.
  • the movement of said piston 4 is driven by a motor 5 through motion transmission means.
  • Said transmission means comprise a worm gear 7 that turns together with the output shaft 6 of the motor 5 , a first transmission element 8 formed by a disc comprising a toothed wheel 15 , and a second transmission element 9 placed between said worm gear 7 and said first transmission element 8 .
  • the second transmission element 9 comprises a first toothed wheel 16 that engages said worm gear 7 and a second toothed wheel 17 that engages the first transmission element 8 , specifically its toothed wheel 15 .
  • the first transmission element 8 comprises a pin 19 placed in said disc that is housed inside a groove 11 of the aforementioned piston 4 . In this way, when the disc turns it will move the pin 10 inside the groove 11 , displacing the piston 4 forward and backward inside the chamber 1 .
  • Said piston 4 comprises a cylinder 12 that defines a housing for the soap or substance inside the chamber 1 , and also divides said chamber 1 into a compartment for air, around said cylinder 12 , as shown in FIG. 2 .
  • Said chamber 1 also comprises an substance inlet 2 and a substance outlet 3 , as well as an air inlet 13 and an air outlet 14 , all of them having the corresponding check valves.
  • Said substance for example soap, is introduced in said chamber 1 though the inlet 2 from a refill (not shown in the figures) using a supply tube 18 , as shown in FIG. 1 .
  • the substance outlet 3 and air outlet 14 can dispense the substance and/or air to the user directly, or preferably are supplied to a mixing chamber from where they are dispensed to the users.
  • the dispensing device of the present invention operates as follows:
  • a sensor When a sensor (not shown in the figures) detects the presence, for example, of a hand, it sends a signal to the motor 5 , which will be actuated and turn its output shaft 6 for a specific number of turns, calculated according to the amount of soap or substance to be dispensed to the user This calculation will be performed using suitable conventional control means.
  • the first transmission element 8 When the first transmission element 8 turns, it causes the alternating displacement of said piston 4 , as described above, so that the substance and/or air inside the chamber 1 is dispensed, and also causes the subsequent entry of substance and/or air into the chamber 1 during the alternating motion of the piston 4 .

Abstract

The device comprises a chamber (1) provided with an inlet (2) and an outlet (3); a piston (4) inside the chamber (1), the movement of which causes the exit of the substance; and a motor (5) with an output shaft (6) that drives the motion of said piston (4) when it receives a signal from a sensor; and transmission means that transmit the drive movement from the motor (5) to said piston (4); characterised in that said transmission means comprise: a worm gear (7) rotationally attached to the output shaft (6) of the motor (5); a first transmission element (8) connected to said piston (4); and a second transmission element (9) connected to said worm gear (7) and to said first transmission element (8).
The device enables small dimensions compared to conventional devices.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a national stage of international application no. PCT/EP2013/070630, filed Oct. 3, 2013, the disclosure of which is incorporated herein by reference in its entirety.
The present invention relates to a device for dispensing substances, such as soap or air freshener, that dispenses a specific amount of said substance when a detector is activated, such as when a hand is placed near said dispensing device or when the presence of a person is detected.
BACKGROUND OF THE INVENTION
Devices are currently commonly used for dispensing substances, such as soap, that dispense a predetermined amount of substance using presence detectors, such as when a hand is detected near the device.
These dispensing devices comprise a motor actuated by a sensor that detects said presence, releasing the substance from the device by means of a transmission mechanism.
The dispensing devices of this type currently known are bulky, as said transmission means generally comprise a plurality of gears that occupy a great volume.
The volume occupied by these devices is a drawback when installing the devices, for example, in a bathroom, as the available space is limited.
In addition, the market requires said devices to have a competitive price that allows them to be accepted by consumers, so that the designers of these devices must provide the lowest possible price.
In practice, it is common to use a brush motor to achieve said competitive price. This type of motor has the advantage of a low price, but it has a high rotation speed that requires considerable mechanical gear reduction in order to obtain the appropriate speed and force for pumping the substance. This speed must not be so fast to make soap splash on the user's hands, for example, nor so slow to make the user impatient.
Consequently, there is a need for a device for dispensing substances, such as soap or air freshener, with dimensions as small as possible for use in locations with limited space, and with an affordable price, in line with user needs.
DESCRIPTION OF THE INVENTION
The dispensing device of the invention manages to solve the aforementioned drawbacks, and provides additional advantages as described below.
The device for dispensing substances of the present invention comprises:
    • a chamber with a substance inlet and outlet;
    • a piston inside said chamber that when actuated pushes said substance out of said chamber;
    • a motor provided with an output shaft that drives the movement of said piston when it receives a signal from a sensor; and
    • transmission means that transmit the drive movement from the motor to said piston;
      and it is characterised in that said transmission means comprise:
    • a worm gear that turns with the output shaft of the motor;
    • a first transmission element connected to said piston; and
    • a second transmission element that is connected to said worm gear and said first transmission element, transmitting the rotation movement from said worm gear to said first transmission element.
According to a preferred embodiment, said first transmission element is connected to said piston by a pin of the first transmission element which is housed inside a groove of said piston, the rotation of said first transmission element resulting in the displacement of said pin inside the groove and the alternating linear motion of said piston.
Preferably, said piston comprises a cylinder in which the substances to be dispensed from the chamber are placed.
Optionally, said chamber also comprises an outside air inlet and an air outlet.
According to a preferred embodiment, said first transmission element is a disc comprising a toothed wheel with its teeth located on the perimeter of one of the disc faces, and said second transmission element comprises a first toothed wheel that engages the aforementioned wormed gear and a second toothed wheel that engages the first transmission element.
Advantageously, the diameter of said first toothed wheel of the second transmission element is smaller than the diameter of said second toothed wheel of the second transmission element, and the toothed wheel of the first transmission element and the second toothed wheel of the second transmission element are perpendicular to each other.
The dispensing device of the present invention has the advantage of having small dimensions compared to conventional dispensing devices of this type, which makes it suitable for use in any location, such as above a sink. In addition, its cost is appropriate for the users' needs.
BRIEF DESCRIPTION OF THE DRAWINGS
To aid a better understanding of the matters described above, some drawings are accompanied where, for purposes of illustration only and as a non-limiting example, a schematic representation is given of an embodiment of the invention.
FIG. 1 is a perspective exploded view of the dispensing device of the present invention.
FIG. 2 is a cross-sectional view of the dispensing device of the present invention.
 DESCRIPTION OF A PREFERRED EMBODIMENT
Firstly, it should be remarked that the dispensing device of the present invention is preferably used to dispense soap automatically when detecting the presence of a hand, although it is obvious that such a dispensing device could also be used to dispense other substances, such as air freshener when detecting the presence of a person.
The dispensing device of the present invention comprises a chamber 1 that contains the substance to dispense and air; inside this chamber 1, a piston 4 moves in an alternating motion to dispense said substance and/or air.
The movement of said piston 4 is driven by a motor 5 through motion transmission means.
Said transmission means comprise a worm gear 7 that turns together with the output shaft 6 of the motor 5, a first transmission element 8 formed by a disc comprising a toothed wheel 15, and a second transmission element 9 placed between said worm gear 7 and said first transmission element 8.
The second transmission element 9 comprises a first toothed wheel 16 that engages said worm gear 7 and a second toothed wheel 17 that engages the first transmission element 8, specifically its toothed wheel 15.
In addition, the first transmission element 8 comprises a pin 19 placed in said disc that is housed inside a groove 11 of the aforementioned piston 4. In this way, when the disc turns it will move the pin 10 inside the groove 11, displacing the piston 4 forward and backward inside the chamber 1.
Said piston 4 comprises a cylinder 12 that defines a housing for the soap or substance inside the chamber 1, and also divides said chamber 1 into a compartment for air, around said cylinder 12, as shown in FIG. 2.
Said chamber 1 also comprises an substance inlet 2 and a substance outlet 3, as well as an air inlet 13 and an air outlet 14, all of them having the corresponding check valves.
Said substance, for example soap, is introduced in said chamber 1 though the inlet 2 from a refill (not shown in the figures) using a supply tube 18, as shown in FIG. 1. In addition, the substance outlet 3 and air outlet 14 can dispense the substance and/or air to the user directly, or preferably are supplied to a mixing chamber from where they are dispensed to the users.
The dispensing device of the present invention operates as follows:
When a sensor (not shown in the figures) detects the presence, for example, of a hand, it sends a signal to the motor 5, which will be actuated and turn its output shaft 6 for a specific number of turns, calculated according to the amount of soap or substance to be dispensed to the user This calculation will be performed using suitable conventional control means.
The rotation of the output shaft 6 of the motor 5 will cause the corresponding rotation of the worm gear 7, which in turn will cause the rotation of the second transmission element 9 and the first transmission element 8, through the corresponding toothed wheels 15, 16 and 17. This transmission of movement will, using the dimensions of the corresponding toothed wheels, result in the appropriate reduction in the speed of rotation in order to dispense the correct amount of substance.
When the first transmission element 8 turns, it causes the alternating displacement of said piston 4, as described above, so that the substance and/or air inside the chamber 1 is dispensed, and also causes the subsequent entry of substance and/or air into the chamber 1 during the alternating motion of the piston 4.
Although reference has been made to a specific embodiment of the invention, it will be obvious to a person skilled in the art that the dispensing device described can be susceptible to numerous variations and modifications, and that all the aforementioned details may be replaced by other technically equivalent ones, without extending beyond the scope of protection defined by the appending claims.

Claims (3)

The invention claimed is:
1. A device for dispensing a substance, the device comprising:
a chamber defining a substance inlet (2), a substance outlet (3), an air inlet (13) for the receipt of air from the outside, and an air outlet (14);
a piston (4) located inside the chamber (1), the movement of which causes the exit of both (a) the substance to the outside of said device via said substance outlet (3) and (b) air to the outside of said device via said air outlet (14);
a motor (5) provided with an output shaft (6) that drives the movement of said piston (4) when it receives a signal from a sensor; and
transmission means that transmit the drive movement from the motor (5) to said piston (4);
wherein said transmission means comprises:
a worm gear (7) rotationally attached to the output shaft (6) of the motor (5);
a first transmission element (8) connected to said piston by a pin (10) of said first transmission element (8) that is housed in a groove (11) of said piston (4), the rotation of said first transmission element (8) causing the displacement of said pin (10) longitudinally along and inside the groove (11), wherein the reciprocating movement of the pin (10) longitudinally along and inside the groove (11) causes the alternating linear movement of said piston (4), wherein said first transmission element (8) is a disc comprising a toothed wheel (15) with its teeth located at the perimeter of one of the faces of the disc;
a second transmission element (9) that is connected to said worm gear (7) and to said first transmission element (8), transmitting the rotation from said worm gear (7) to said first transmission element (8), wherein said second transmission element (9) comprises a first toothed wheel (16) that engages said worm gear (7) and a second toothed wheel (17) that engages said first transmission element (8); and
wherein said toothed wheel (15) of the first transmission element (8) comprises teeth spaced apart from one another along a first circumferential direction and said second toothed wheel (17) of the second transmission element (9) comprises teeth spaced apart from one another along a second circumferential direction different from the first circumferential direction, and
wherein said toothed wheel (15) of the first transmission element (8) and said second toothed wheel (17) of the second transmission element (9) are perpendicular to each other with an axis of rotation of said toothed wheel (15) of the first transmission element (8) being perpendicular to an axis of rotation of said second toothed wheel (17) of the second transmission element (9) and said teeth of the toothed wheel (15) of the first transmission element (8) and said teeth of the second toothed wheel (17) of the second transmission element (9) directly engage each other, such that rotation of one of said toothed wheel (15) of the first transmission element (8) and said second toothed wheel (17) of the second transmission element (9) directly causes rotation of the other of said toothed wheel (15) of the first transmission element (8) and said second toothed wheel (17) of the second transmission element (9).
2. The device according to claim 1, wherein said piston (4) comprises a cylinder (12) in which are placed the substance for exit from said chamber (1).
3. The device according to claim 1, wherein the diameter of said first toothed wheel (16) of the second transmission element (9) is smaller than the diameter of said second toothed wheel (17) of the second transmission element (9).
US15/026,940 2013-10-03 2013-10-03 Device for dispensing a substance comprising a chamber defining a substance inlet, a substance outlet, an air inlet, and an air outlet, a piston located inside the chamber and whose movement causes the exit of both the substance and air to outside of the device Active US11371493B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/070630 WO2015049004A1 (en) 2013-10-03 2013-10-03 Device for dispensing substances

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US20160298613A1 US20160298613A1 (en) 2016-10-13
US11371493B2 true US11371493B2 (en) 2022-06-28

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Country Link
US (1) US11371493B2 (en)
EP (1) EP3052804B1 (en)
CA (1) CA2926136C (en)
ES (1) ES2727340T3 (en)
WO (1) WO2015049004A1 (en)

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CN109046860A (en) * 2018-07-23 2018-12-21 广州花和日用品有限公司 Atomising device

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CA2926136A1 (en) 2015-04-09
WO2015049004A1 (en) 2015-04-09
CA2926136C (en) 2020-12-29
ES2727340T3 (en) 2019-10-15
EP3052804A1 (en) 2016-08-10
EP3052804B1 (en) 2019-02-27

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